Can't connect to our server after update-Help!

Hello everyone,

 Ever since this recent update, we have not been able to get into our home server we started. We have the ports forwarded 28015 and 28016 on TCP and UDP. We have steam, the server, and rust updated. 

The problem is, it says we need to update the client, and that is false far as we see it. We also have disabled the firewall in case that was doing it (last update, that was the issue). We launch our server using a BAT file.

We are completely stumped and cannot play our server until a fix is found. Any help is appreciated very much! Thanks